Cleaning air ducts in your home is likely not on the forefront of your mind, but ensuring the system is maintained can reduce contaminants in your home and improve air quality. “The frequency of duct ...

The eye is not red and the eyelid is not swollen. Both sides are blocked in 30% of these children. Caused by blockage of the lacrimal duct. This duct carries tears from the corner of the eye to ...

Your salivary glands produce saliva and empty it into your mouth through slots called ducts. When these ducts become blocked, they can't produce enough saliva to moisten your food for proper eating.